header bolts
10-19-2019, 05:38 PM
#1
Banned
Thread Starter
header bolts
Hi folks, I'm replacing seals on the oil cooler and had to pull the header out to get to it. I've heard that installing bolts on the header makes future work easier and wanted to see if anyone has a source for the bolts. Thanks
10-19-2019, 10:15 PM
#3
Rennlist Member
Do you mean the manifold to head fasteners? If you want to switch from studs to bolts, they're 8mm. Just purchase the appropriate length. I'd think twice about it though. The threads in the head will wear quickly being aluminum. I wouldn't do it without putting steel thread inserts in the head first.
Last edited by tempest411; 10-20-2019 at 01:25 AM.
10-20-2019, 09:33 AM
#4
Rennlist Member
Do you mean the manifold to head fasteners? If you want to switch from studs to bolts, they're 8mm. Just purchase the appropriate length. I'd think twice about it though. The threads in the head will wear quickly being aluminum. I wouldn't do it without putting steel thread inserts in the head first.
10-21-2019, 10:39 AM
#7
Banned
Thread Starter
Thank you for the suggestions. I'm going to keep the studs. BTW they have to be removed to get the 1-4 header off. I double nutted them and removed them to gain access to the oil cooler.
Most people had an internal leak but, my problem is an external oil leak from the housing. it was leaking a lot of oil and puddling in the garage. Though bolts would make future work easier but, there are few jobs that are easy on a 951.
Most people had an internal leak but, my problem is an external oil leak from the housing. it was leaking a lot of oil and puddling in the garage. Though bolts would make future work easier but, there are few jobs that are easy on a 951.
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10-21-2019, 01:27 PM
#8
Three Wheelin'
I just went to a local hardware store (remember those)? … we still have a few around, few and far between. BUT! They had Metric Copper flange nuts... Put em on.. Good to go...
+1 on thread inserts if anybody ever wanted to get rid of the studs... I can attest... Having one engine that was taken apart by Previous owners like 4 to 5 times I have a just a TON Heli-coils in it in various places... so basically with bolts that are taken in and out of aluminum, in the end, you will end up with inserts..LOL
+1 on thread inserts if anybody ever wanted to get rid of the studs... I can attest... Having one engine that was taken apart by Previous owners like 4 to 5 times I have a just a TON Heli-coils in it in various places... so basically with bolts that are taken in and out of aluminum, in the end, you will end up with inserts..LOL
10-23-2019, 04:16 AM
#10
Rennlist Member
I've removed the manifolds off two of these cars with the studs in place. It wasn't that bad at all. What was preventing you from getting them out on yours?
10-23-2019, 01:55 PM
#11
Banned
Thread Starter
I needed to remove just the 1 and 4 header. The studs interfere.
There is not enough room to remove it even with the studs out. You cant even remove it without the 2 and 3 header out as well. I just moved it out of the way of the oil cooler housing and did the job. The 4 header and shield obstruct the housing..
10-23-2019, 02:44 PM
#12
Rennlist Member
Is you car a turbo?
I needed to remove just the 1 and 4 header. The studs interfere.
There is not enough room to remove it even with the studs out. You cant even remove it without the 2 and 3 header out as well. I just moved it out of the way of the oil cooler housing and did the job. The 4 header and shield obstruct the housing..
I needed to remove just the 1 and 4 header. The studs interfere.
There is not enough room to remove it even with the studs out. You cant even remove it without the 2 and 3 header out as well. I just moved it out of the way of the oil cooler housing and did the job. The 4 header and shield obstruct the housing..
10-25-2019, 07:09 AM
#14
Rennlist Member
